Dec 12 04:10:16.884 INFO checking AGausmann/tictactoe-rust against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 04:10:16.884 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 04:10:17.440 INFO [stdout] 5c126e7dbad5c9c8aace979177547a6399f6f889103aef3bb029ae3153465525
Dec 12 04:10:17.442 INFO running `"docker" "start" "-a" "5c126e7dbad5c9c8aace979177547a6399f6f889103aef3bb029ae3153465525"`
Dec 12 04:10:18.736 INFO [stderr] usermod: no changes
Dec 12 04:10:18.824 INFO [stderr]     Checking tic_tac_toe v0.1.0 (/source)
Dec 12 04:10:19.252 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.252 INFO [stderr]   --> src/main.rs:93:9
Dec 12 04:10:19.252 INFO [stderr]    |
Dec 12 04:10:19.252 INFO [stderr] 85 |             'col: for j in 0..3 {
Dec 12 04:10:19.252 INFO [stderr]    |             ---- first declared here
Dec 12 04:10:19.252 INFO [stderr] ...
Dec 12 04:10:19.252 INFO [stderr] 93 |         'col: for j in 0..3 {
Dec 12 04:10:19.252 INFO [stderr]    |         ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.252 INFO [stderr] 
Dec 12 04:10:19.252 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.252 INFO [stderr]   --> src/main.rs:94:13
Dec 12 04:10:19.252 INFO [stderr]    |
Dec 12 04:10:19.252 INFO [stderr] 84 |         'row: for i in 0..3 {
Dec 12 04:10:19.252 INFO [stderr]    |         ---- first declared here
Dec 12 04:10:19.252 INFO [stderr] ...
Dec 12 04:10:19.252 INFO [stderr] 94 |             'row: for i in 0..3 {
Dec 12 04:10:19.252 INFO [stderr]    |             ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.252 INFO [stderr] 
Dec 12 04:10:19.252 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.252 INFO [stderr]    --> src/main.rs:118:9
Dec 12 04:10:19.252 INFO [stderr]     |
Dec 12 04:10:19.252 INFO [stderr] 84  |         'row: for i in 0..3 {
Dec 12 04:10:19.252 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.252 INFO [stderr] ...
Dec 12 04:10:19.252 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 12 04:10:19.252 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.252 INFO [stderr] 
Dec 12 04:10:19.252 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.252 INFO [stderr]    --> src/main.rs:118:9
Dec 12 04:10:19.252 INFO [stderr]     |
Dec 12 04:10:19.252 INFO [stderr] 94  |             'row: for i in 0..3 {
Dec 12 04:10:19.252 INFO [stderr]     |             ---- first declared here
Dec 12 04:10:19.252 INFO [stderr] ...
Dec 12 04:10:19.252 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 12 04:10:19.252 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.252 INFO [stderr] 
Dec 12 04:10:19.252 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.256 INFO [stderr]    --> src/main.rs:119:13
Dec 12 04:10:19.256 INFO [stderr]     |
Dec 12 04:10:19.256 INFO [stderr] 85  |             'col: for j in 0..3 {
Dec 12 04:10:19.256 INFO [stderr]     |             ---- first declared here
Dec 12 04:10:19.256 INFO [stderr] ...
Dec 12 04:10:19.256 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 12 04:10:19.256 INFO [stderr]     |             ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.256 INFO [stderr] 
Dec 12 04:10:19.256 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.256 INFO [stderr]    --> src/main.rs:119:13
Dec 12 04:10:19.256 INFO [stderr]     |
Dec 12 04:10:19.256 INFO [stderr] 93  |         'col: for j in 0..3 {
Dec 12 04:10:19.256 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.256 INFO [stderr] ...
Dec 12 04:10:19.256 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 12 04:10:19.256 INFO [stderr]     |             ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.256 INFO [stderr] 
Dec 12 04:10:19.256 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.256 INFO [stderr]    --> src/main.rs:127:9
Dec 12 04:10:19.256 INFO [stderr]     |
Dec 12 04:10:19.256 INFO [stderr] 85  |             'col: for j in 0..3 {
Dec 12 04:10:19.256 INFO [stderr]     |             ---- first declared here
Dec 12 04:10:19.256 INFO [stderr] ...
Dec 12 04:10:19.256 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 12 04:10:19.256 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.256 INFO [stderr] 
Dec 12 04:10:19.260 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.260 INFO [stderr]    --> src/main.rs:127:9
Dec 12 04:10:19.260 INFO [stderr]     |
Dec 12 04:10:19.260 INFO [stderr] 93  |         'col: for j in 0..3 {
Dec 12 04:10:19.260 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.260 INFO [stderr] ...
Dec 12 04:10:19.260 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 12 04:10:19.260 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.260 INFO [stderr] 
Dec 12 04:10:19.260 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.260 INFO [stderr]    --> src/main.rs:127:9
Dec 12 04:10:19.260 INFO [stderr]     |
Dec 12 04:10:19.260 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 12 04:10:19.260 INFO [stderr]     |             ---- first declared here
Dec 12 04:10:19.260 INFO [stderr] ...
Dec 12 04:10:19.260 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 12 04:10:19.260 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.260 INFO [stderr] 
Dec 12 04:10:19.260 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.260 INFO [stderr]    --> src/main.rs:128:13
Dec 12 04:10:19.260 INFO [stderr]     |
Dec 12 04:10:19.260 INFO [stderr] 84  |         'row: for i in 0..3 {
Dec 12 04:10:19.260 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.260 INFO [stderr] ...
Dec 12 04:10:19.260 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 12 04:10:19.260 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.264 INFO [stderr] 
Dec 12 04:10:19.264 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.264 INFO [stderr]    --> src/main.rs:128:13
Dec 12 04:10:19.264 INFO [stderr]     |
Dec 12 04:10:19.264 INFO [stderr] 94  |             'row: for i in 0..3 {
Dec 12 04:10:19.264 INFO [stderr]     |             ---- first declared here
Dec 12 04:10:19.264 INFO [stderr] ...
Dec 12 04:10:19.264 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 12 04:10:19.264 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.264 INFO [stderr] 
Dec 12 04:10:19.264 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.264 INFO [stderr]    --> src/main.rs:128:13
Dec 12 04:10:19.264 INFO [stderr]     |
Dec 12 04:10:19.264 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 12 04:10:19.264 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.264 INFO [stderr] ...
Dec 12 04:10:19.264 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 12 04:10:19.264 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.264 INFO [stderr] 
Dec 12 04:10:19.264 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.264 INFO [stderr]    --> src/main.rs:190:5
Dec 12 04:10:19.264 INFO [stderr]     |
Dec 12 04:10:19.264 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 12 04:10:19.264 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.264 INFO [stderr] ...
Dec 12 04:10:19.264 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 12 04:10:19.264 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.268 INFO [stderr] 
Dec 12 04:10:19.268 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.268 INFO [stderr]    --> src/main.rs:192:9
Dec 12 04:10:19.268 INFO [stderr]     |
Dec 12 04:10:19.268 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 12 04:10:19.268 INFO [stderr]     |     ---- first declared here
Dec 12 04:10:19.268 INFO [stderr] ...
Dec 12 04:10:19.268 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 12 04:10:19.268 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.268 INFO [stderr] 
Dec 12 04:10:19.268 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.268 INFO [stderr]    --> src/main.rs:230:5
Dec 12 04:10:19.268 INFO [stderr]     |
Dec 12 04:10:19.268 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 12 04:10:19.268 INFO [stderr]     |     ---- first declared here
Dec 12 04:10:19.268 INFO [stderr] ...
Dec 12 04:10:19.268 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 12 04:10:19.268 INFO [stderr]     |     ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.268 INFO [stderr] 
Dec 12 04:10:19.268 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.268 INFO [stderr]    --> src/main.rs:230:5
Dec 12 04:10:19.268 INFO [stderr]     |
Dec 12 04:10:19.268 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 12 04:10:19.268 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.268 INFO [stderr] ...
Dec 12 04:10:19.268 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 12 04:10:19.268 INFO [stderr]     |     ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.268 INFO [stderr] 
Dec 12 04:10:19.272 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.272 INFO [stderr]    --> src/main.rs:232:9
Dec 12 04:10:19.272 INFO [stderr]     |
Dec 12 04:10:19.272 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 12 04:10:19.272 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.272 INFO [stderr] ...
Dec 12 04:10:19.272 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 12 04:10:19.272 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.272 INFO [stderr] 
Dec 12 04:10:19.272 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.272 INFO [stderr]    --> src/main.rs:232:9
Dec 12 04:10:19.272 INFO [stderr]     |
Dec 12 04:10:19.272 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 12 04:10:19.272 INFO [stderr]     |     ---- first declared here
Dec 12 04:10:19.272 INFO [stderr] ...
Dec 12 04:10:19.272 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 12 04:10:19.272 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.272 INFO [stderr] 
Dec 12 04:10:19.272 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.272 INFO [stderr]    --> src/main.rs:244:5
Dec 12 04:10:19.272 INFO [stderr]     |
Dec 12 04:10:19.272 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 12 04:10:19.272 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.272 INFO [stderr] ...
Dec 12 04:10:19.272 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 12 04:10:19.272 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.272 INFO [stderr] 
Dec 12 04:10:19.276 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.276 INFO [stderr]    --> src/main.rs:244:5
Dec 12 04:10:19.276 INFO [stderr]     |
Dec 12 04:10:19.276 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 12 04:10:19.276 INFO [stderr]     |     ---- first declared here
Dec 12 04:10:19.276 INFO [stderr] ...
Dec 12 04:10:19.276 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 12 04:10:19.276 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.276 INFO [stderr] 
Dec 12 04:10:19.276 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.276 INFO [stderr]    --> src/main.rs:244:5
Dec 12 04:10:19.276 INFO [stderr]     |
Dec 12 04:10:19.276 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 12 04:10:19.276 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.276 INFO [stderr] ...
Dec 12 04:10:19.276 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 12 04:10:19.276 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.276 INFO [stderr] 
Dec 12 04:10:19.276 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.276 INFO [stderr]    --> src/main.rs:246:9
Dec 12 04:10:19.276 INFO [stderr]     |
Dec 12 04:10:19.276 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 12 04:10:19.276 INFO [stderr]     |     ---- first declared here
Dec 12 04:10:19.276 INFO [stderr] ...
Dec 12 04:10:19.276 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 12 04:10:19.276 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.276 INFO [stderr] 
Dec 12 04:10:19.276 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.280 INFO [stderr]    --> src/main.rs:246:9
Dec 12 04:10:19.280 INFO [stderr]     |
Dec 12 04:10:19.280 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 12 04:10:19.280 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.280 INFO [stderr] ...
Dec 12 04:10:19.280 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 12 04:10:19.280 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.280 INFO [stderr] 
Dec 12 04:10:19.280 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.280 INFO [stderr]    --> src/main.rs:246:9
Dec 12 04:10:19.280 INFO [stderr]     |
Dec 12 04:10:19.280 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 12 04:10:19.280 INFO [stderr]     |     ---- first declared here
Dec 12 04:10:19.280 INFO [stderr] ...
Dec 12 04:10:19.280 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 12 04:10:19.280 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.280 INFO [stderr] 
Dec 12 04:10:19.388 INFO [stderr] warning: value assigned to `cell_count` is never read
Dec 12 04:10:19.388 INFO [stderr]    --> src/main.rs:172:13
Dec 12 04:10:19.388 INFO [stderr]     |
Dec 12 04:10:19.388 INFO [stderr] 172 |     let mut cell_count = 0;
Dec 12 04:10:19.388 INFO [stderr]     |             ^^^^^^^^^^
Dec 12 04:10:19.388 INFO [stderr]     |
Dec 12 04:10:19.388 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 12 04:10:19.388 INFO [stderr] 
Dec 12 04:10:19.421 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:10:19.421 INFO [stderr]    --> src/main.rs:186:13
Dec 12 04:10:19.421 INFO [stderr]     |
Dec 12 04:10:19.421 INFO [stderr] 186 |             board.set_o(empty_cell);
Dec 12 04:10:19.421 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:10:19.421 INFO [stderr]     |
Dec 12 04:10:19.421 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 12 04:10:19.421 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:10:19.421 INFO [stderr] 
Dec 12 04:10:19.422 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:10:19.422 INFO [stderr]    --> src/main.rs:200:13
Dec 12 04:10:19.422 INFO [stderr]     |
Dec 12 04:10:19.422 INFO [stderr] 200 |             board.set_o(empty_cell);
Dec 12 04:10:19.422 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:10:19.422 INFO [stderr]     |
Dec 12 04:10:19.422 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:10:19.422 INFO [stderr] 
Dec 12 04:10:19.422 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:10:19.422 INFO [stderr]    --> src/main.rs:213:9
Dec 12 04:10:19.422 INFO [stderr]     |
Dec 12 04:10:19.422 INFO [stderr] 213 |         board.set_o(empty_cell);
Dec 12 04:10:19.422 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:10:19.422 INFO [stderr]     |
Dec 12 04:10:19.422 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:10:19.422 INFO [stderr] 
Dec 12 04:10:19.423 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:10:19.423 INFO [stderr]    --> src/main.rs:225:9
Dec 12 04:10:19.423 INFO [stderr]     |
Dec 12 04:10:19.423 INFO [stderr] 225 |         board.set_o(empty_cell);
Dec 12 04:10:19.423 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:10:19.423 INFO [stderr]     |
Dec 12 04:10:19.423 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:10:19.423 INFO [stderr] 
Dec 12 04:10:19.424 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:10:19.424 INFO [stderr]    --> src/main.rs:240:13
Dec 12 04:10:19.424 INFO [stderr]     |
Dec 12 04:10:19.424 INFO [stderr] 240 |             board.set_o(empty_cell);
Dec 12 04:10:19.424 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:10:19.424 INFO [stderr]     |
Dec 12 04:10:19.424 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:10:19.424 INFO [stderr] 
Dec 12 04:10:19.424 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:10:19.424 INFO [stderr]    --> src/main.rs:254:13
Dec 12 04:10:19.424 INFO [stderr]     |
Dec 12 04:10:19.425 INFO [stderr] 254 |             board.set_o(empty_cell);
Dec 12 04:10:19.425 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:10:19.425 INFO [stderr]     |
Dec 12 04:10:19.425 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:10:19.425 INFO [stderr] 
Dec 12 04:10:19.425 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:10:19.425 INFO [stderr]    --> src/main.rs:267:9
Dec 12 04:10:19.425 INFO [stderr]     |
Dec 12 04:10:19.426 INFO [stderr] 267 |         board.set_o(empty_cell);
Dec 12 04:10:19.426 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:10:19.426 INFO [stderr]     |
Dec 12 04:10:19.426 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:10:19.426 INFO [stderr] 
Dec 12 04:10:19.426 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:10:19.426 INFO [stderr]    --> src/main.rs:279:9
Dec 12 04:10:19.426 INFO [stderr]     |
Dec 12 04:10:19.426 INFO [stderr] 279 |         board.set_o(empty_cell);
Dec 12 04:10:19.426 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:10:19.427 INFO [stderr]     |
Dec 12 04:10:19.427 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:10:19.427 INFO [stderr] 
Dec 12 04:10:19.819 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.820 INFO [stderr]   --> src/main.rs:93:9
Dec 12 04:10:19.820 INFO [stderr]    |
Dec 12 04:10:19.820 INFO [stderr] 85 |             'col: for j in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]    |             ---- first declared here
Dec 12 04:10:19.820 INFO [stderr] ...
Dec 12 04:10:19.820 INFO [stderr] 93 |         'col: for j in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]    |         ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.820 INFO [stderr] 
Dec 12 04:10:19.820 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.820 INFO [stderr]   --> src/main.rs:94:13
Dec 12 04:10:19.820 INFO [stderr]    |
Dec 12 04:10:19.820 INFO [stderr] 84 |         'row: for i in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]    |         ---- first declared here
Dec 12 04:10:19.820 INFO [stderr] ...
Dec 12 04:10:19.820 INFO [stderr] 94 |             'row: for i in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]    |             ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.820 INFO [stderr] 
Dec 12 04:10:19.820 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.820 INFO [stderr]    --> src/main.rs:118:9
Dec 12 04:10:19.820 INFO [stderr]     |
Dec 12 04:10:19.820 INFO [stderr] 84  |         'row: for i in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.820 INFO [stderr] ...
Dec 12 04:10:19.820 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.820 INFO [stderr] 
Dec 12 04:10:19.820 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.820 INFO [stderr]    --> src/main.rs:118:9
Dec 12 04:10:19.820 INFO [stderr]     |
Dec 12 04:10:19.820 INFO [stderr] 94  |             'row: for i in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]     |             ---- first declared here
Dec 12 04:10:19.820 INFO [stderr] ...
Dec 12 04:10:19.820 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.820 INFO [stderr] 
Dec 12 04:10:19.820 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.820 INFO [stderr]    --> src/main.rs:119:13
Dec 12 04:10:19.820 INFO [stderr]     |
Dec 12 04:10:19.820 INFO [stderr] 85  |             'col: for j in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]     |             ---- first declared here
Dec 12 04:10:19.820 INFO [stderr] ...
Dec 12 04:10:19.820 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]     |             ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.820 INFO [stderr] 
Dec 12 04:10:19.820 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.820 INFO [stderr]    --> src/main.rs:119:13
Dec 12 04:10:19.820 INFO [stderr]     |
Dec 12 04:10:19.820 INFO [stderr] 93  |         'col: for j in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.820 INFO [stderr] ...
Dec 12 04:10:19.820 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]     |             ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.820 INFO [stderr] 
Dec 12 04:10:19.820 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.820 INFO [stderr]    --> src/main.rs:127:9
Dec 12 04:10:19.820 INFO [stderr]     |
Dec 12 04:10:19.820 INFO [stderr] 85  |             'col: for j in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]     |             ---- first declared here
Dec 12 04:10:19.820 INFO [stderr] ...
Dec 12 04:10:19.820 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.820 INFO [stderr] 
Dec 12 04:10:19.820 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.820 INFO [stderr]    --> src/main.rs:127:9
Dec 12 04:10:19.820 INFO [stderr]     |
Dec 12 04:10:19.820 INFO [stderr] 93  |         'col: for j in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.820 INFO [stderr] ...
Dec 12 04:10:19.820 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.820 INFO [stderr] 
Dec 12 04:10:19.820 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.820 INFO [stderr]    --> src/main.rs:127:9
Dec 12 04:10:19.820 INFO [stderr]     |
Dec 12 04:10:19.820 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]     |             ---- first declared here
Dec 12 04:10:19.820 INFO [stderr] ...
Dec 12 04:10:19.820 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.820 INFO [stderr] 
Dec 12 04:10:19.820 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.820 INFO [stderr]    --> src/main.rs:128:13
Dec 12 04:10:19.820 INFO [stderr]     |
Dec 12 04:10:19.820 INFO [stderr] 84  |         'row: for i in 0..3 {
Dec 12 04:10:19.820 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.820 INFO [stderr] ...
Dec 12 04:10:19.820 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.821 INFO [stderr] 
Dec 12 04:10:19.821 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.821 INFO [stderr]    --> src/main.rs:128:13
Dec 12 04:10:19.821 INFO [stderr]     |
Dec 12 04:10:19.821 INFO [stderr] 94  |             'row: for i in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |             ---- first declared here
Dec 12 04:10:19.821 INFO [stderr] ...
Dec 12 04:10:19.821 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.821 INFO [stderr] 
Dec 12 04:10:19.821 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.821 INFO [stderr]    --> src/main.rs:128:13
Dec 12 04:10:19.821 INFO [stderr]     |
Dec 12 04:10:19.821 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.821 INFO [stderr] ...
Dec 12 04:10:19.821 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.821 INFO [stderr] 
Dec 12 04:10:19.821 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.821 INFO [stderr]    --> src/main.rs:190:5
Dec 12 04:10:19.821 INFO [stderr]     |
Dec 12 04:10:19.821 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.821 INFO [stderr] ...
Dec 12 04:10:19.821 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.821 INFO [stderr] 
Dec 12 04:10:19.821 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.821 INFO [stderr]    --> src/main.rs:192:9
Dec 12 04:10:19.821 INFO [stderr]     |
Dec 12 04:10:19.821 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |     ---- first declared here
Dec 12 04:10:19.821 INFO [stderr] ...
Dec 12 04:10:19.821 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.821 INFO [stderr] 
Dec 12 04:10:19.821 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.821 INFO [stderr]    --> src/main.rs:230:5
Dec 12 04:10:19.821 INFO [stderr]     |
Dec 12 04:10:19.821 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |     ---- first declared here
Dec 12 04:10:19.821 INFO [stderr] ...
Dec 12 04:10:19.821 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |     ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.821 INFO [stderr] 
Dec 12 04:10:19.821 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.821 INFO [stderr]    --> src/main.rs:230:5
Dec 12 04:10:19.821 INFO [stderr]     |
Dec 12 04:10:19.821 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.821 INFO [stderr] ...
Dec 12 04:10:19.821 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |     ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.821 INFO [stderr] 
Dec 12 04:10:19.821 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.821 INFO [stderr]    --> src/main.rs:232:9
Dec 12 04:10:19.821 INFO [stderr]     |
Dec 12 04:10:19.821 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.821 INFO [stderr] ...
Dec 12 04:10:19.821 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.821 INFO [stderr] 
Dec 12 04:10:19.821 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.821 INFO [stderr]    --> src/main.rs:232:9
Dec 12 04:10:19.821 INFO [stderr]     |
Dec 12 04:10:19.821 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |     ---- first declared here
Dec 12 04:10:19.821 INFO [stderr] ...
Dec 12 04:10:19.821 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.821 INFO [stderr] 
Dec 12 04:10:19.821 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.821 INFO [stderr]    --> src/main.rs:244:5
Dec 12 04:10:19.821 INFO [stderr]     |
Dec 12 04:10:19.821 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.821 INFO [stderr] ...
Dec 12 04:10:19.821 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.821 INFO [stderr] 
Dec 12 04:10:19.821 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.821 INFO [stderr]    --> src/main.rs:244:5
Dec 12 04:10:19.821 INFO [stderr]     |
Dec 12 04:10:19.821 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 12 04:10:19.821 INFO [stderr]     |     ---- first declared here
Dec 12 04:10:19.821 INFO [stderr] ...
Dec 12 04:10:19.822 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 12 04:10:19.822 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.822 INFO [stderr] 
Dec 12 04:10:19.822 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 12 04:10:19.822 INFO [stderr]    --> src/main.rs:244:5
Dec 12 04:10:19.822 INFO [stderr]     |
Dec 12 04:10:19.822 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 12 04:10:19.822 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.822 INFO [stderr] ...
Dec 12 04:10:19.822 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 12 04:10:19.822 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 12 04:10:19.822 INFO [stderr] 
Dec 12 04:10:19.822 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.822 INFO [stderr]    --> src/main.rs:246:9
Dec 12 04:10:19.822 INFO [stderr]     |
Dec 12 04:10:19.822 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 12 04:10:19.822 INFO [stderr]     |     ---- first declared here
Dec 12 04:10:19.822 INFO [stderr] ...
Dec 12 04:10:19.822 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 12 04:10:19.822 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.822 INFO [stderr] 
Dec 12 04:10:19.822 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.822 INFO [stderr]    --> src/main.rs:246:9
Dec 12 04:10:19.822 INFO [stderr]     |
Dec 12 04:10:19.822 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 12 04:10:19.822 INFO [stderr]     |         ---- first declared here
Dec 12 04:10:19.822 INFO [stderr] ...
Dec 12 04:10:19.822 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 12 04:10:19.822 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.822 INFO [stderr] 
Dec 12 04:10:19.822 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 12 04:10:19.822 INFO [stderr]    --> src/main.rs:246:9
Dec 12 04:10:19.822 INFO [stderr]     |
Dec 12 04:10:19.822 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 12 04:10:19.822 INFO [stderr]     |     ---- first declared here
Dec 12 04:10:19.822 INFO [stderr] ...
Dec 12 04:10:19.822 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 12 04:10:19.822 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 12 04:10:19.822 INFO [stderr] 
Dec 12 04:10:19.936 INFO [stderr] warning: value assigned to `cell_count` is never read
Dec 12 04:10:19.936 INFO [stderr]    --> src/main.rs:172:13
Dec 12 04:10:19.936 INFO [stderr]     |
Dec 12 04:10:19.936 INFO [stderr] 172 |     let mut cell_count = 0;
Dec 12 04:10:19.936 INFO [stderr]     |             ^^^^^^^^^^
Dec 12 04:10:19.936 INFO [stderr]     |
Dec 12 04:10:19.936 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 12 04:10:19.936 INFO [stderr] 
Dec 12 04:10:19.964 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:10:19.964 INFO [stderr]    --> src/main.rs:186:13
Dec 12 04:10:19.964 INFO [stderr]     |
Dec 12 04:10:19.964 INFO [stderr] 186 |             board.set_o(empty_cell);
Dec 12 04:10:19.964 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:10:19.964 INFO [stderr]     |
Dec 12 04:10:19.964 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 12 04:10:19.964 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:10:19.965 INFO [stderr] 
Dec 12 04:10:19.965 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:10:19.965 INFO [stderr]    --> src/main.rs:200:13
Dec 12 04:10:19.965 INFO [stderr]     |
Dec 12 04:10:19.965 INFO [stderr] 200 |             board.set_o(empty_cell);
Dec 12 04:10:19.965 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:10:19.965 INFO [stderr]     |
Dec 12 04:10:19.965 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:10:19.965 INFO [stderr] 
Dec 12 04:10:19.965 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:10:19.965 INFO [stderr]    --> src/main.rs:213:9
Dec 12 04:10:19.965 INFO [stderr]     |
Dec 12 04:10:19.965 INFO [stderr] 213 |         board.set_o(empty_cell);
Dec 12 04:10:19.965 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:10:19.965 INFO [stderr]     |
Dec 12 04:10:19.965 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:10:19.965 INFO [stderr] 
Dec 12 04:10:19.965 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:10:19.965 INFO [stderr]    --> src/main.rs:225:9
Dec 12 04:10:19.965 INFO [stderr]     |
Dec 12 04:10:19.965 INFO [stderr] 225 |         board.set_o(empty_cell);
Dec 12 04:10:19.965 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:10:19.965 INFO [stderr]     |
Dec 12 04:10:19.965 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:10:19.965 INFO [stderr] 
Dec 12 04:10:19.965 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:10:19.965 INFO [stderr]    --> src/main.rs:240:13
Dec 12 04:10:19.965 INFO [stderr]     |
Dec 12 04:10:19.965 INFO [stderr] 240 |             board.set_o(empty_cell);
Dec 12 04:10:19.965 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:10:19.965 INFO [stderr]     |
Dec 12 04:10:19.965 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:10:19.965 INFO [stderr] 
Dec 12 04:10:19.965 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:10:19.965 INFO [stderr]    --> src/main.rs:254:13
Dec 12 04:10:19.965 INFO [stderr]     |
Dec 12 04:10:19.965 INFO [stderr] 254 |             board.set_o(empty_cell);
Dec 12 04:10:19.965 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:10:19.965 INFO [stderr]     |
Dec 12 04:10:19.965 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:10:19.965 INFO [stderr] 
Dec 12 04:10:19.965 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:10:19.965 INFO [stderr]    --> src/main.rs:267:9
Dec 12 04:10:19.965 INFO [stderr]     |
Dec 12 04:10:19.965 INFO [stderr] 267 |         board.set_o(empty_cell);
Dec 12 04:10:19.965 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:10:19.965 INFO [stderr]     |
Dec 12 04:10:19.965 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:10:19.965 INFO [stderr] 
Dec 12 04:10:19.965 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:10:19.965 INFO [stderr]    --> src/main.rs:279:9
Dec 12 04:10:19.965 INFO [stderr]     |
Dec 12 04:10:19.965 INFO [stderr] 279 |         board.set_o(empty_cell);
Dec 12 04:10:19.965 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:10:19.965 INFO [stderr]     |
Dec 12 04:10:19.965 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:10:19.965 INFO [stderr] 
Dec 12 04:10:19.992 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
Dec 12 04:10:20.000 INFO [stderr] su: No module specific data is present
Dec 12 04:10:20.749 INFO running `"docker" "inspect" "5c126e7dbad5c9c8aace979177547a6399f6f889103aef3bb029ae3153465525"`
Dec 12 04:10:21.030 INFO running `"docker" "rm" "-f" "5c126e7dbad5c9c8aace979177547a6399f6f889103aef3bb029ae3153465525"`
Dec 12 04:10:21.177 INFO [stdout] 5c126e7dbad5c9c8aace979177547a6399f6f889103aef3bb029ae3153465525